In history, there have been many chaotic times in China, and there are many local forces and warlords in Sichuan. Many people have established a lot of political power here, but we can see from history that none of the local regimes from here have finally laid the foundation. Even many of the regimes based here were not wiped out during the first generation of leaders. Few leadership groups that survive two generations will be wiped out.
Logically, Sichuan should be a place with great potential. After Li Bing of the Qin Dynasty turned this place into a fertile field, it became a famous granary. For example, in the Song Dynasty, the entire country had a population of tens of millions, and in Sichuan alone, there were more than 20 million people, and the economy was also very developed, and the annual contribution to fiscal taxation reached more than 60%. It is precisely because of this that the earliest paper money intercourse at that time will appear in Sichuan. But it is such an economically developed and populous region that cannot get out of the emperor.
Because there are many geographical barriers in Sichuan, people who want to come out or want to come in are very miserable things. So over time, the people here will form a semi-independent situation, and most of the time, China's political center of gravity is in the north, and there will be a heavenly emperor here. As long as the imperial grain is handed over, what happens in the Central Plains has nothing to do with it. Even the soldiers recruited here are not strong in combat, because Sichuan is relatively wealthy, so many people are reluctant to become soldiers.
Even when you are a soldier, you are more afraid of death, and you will choose to surrender when you have the opportunity. Because in their view, no matter who they follow, it is the same, as long as someone becomes an emperor, they all need to pay grain, and everyone is the same. Moreover, this kind of thinking is not only more common among the common people, but also in the scholar class in Sichuan. Everyone is reluctant to get involved in external disputes. It was precisely because of this that Deng Ai's three thousand men and horses were able to occupy the entire Shu Han region, because everyone was unwilling to fight, let alone fight for foreign forces such as Liu Bei, so a few thousand people were able to occupy the whole of Sichuan.
Historically, the regime after the occupation of Sichuan wanted to fight out of Sichuan, but also had to rely on the support of soldiers and soldiers from other places. If you only rely on the locals, there is no incentive to fight. Therefore, we will see that in Liu Bei's army, the basics advocating attack are those Jingzhou factions, and the local scholars in Shudi are all advocating self-preservation. Don't provoke too much right and wrong. Therefore, after these outsiders led by Zhuge Liang basically died, the Shu state was controlled by these natives, and their policy was to defend. Blindly defensive, of course, it is impossible to agree with the world, so we see that there are very few emperors here.